that are the highest risk of poor health are those with poor resources, poor financial resources, poor educational resources, because they may not make good judgments or have access to health care when it's very essential, or when it's crucial in prevention of progression of an illness. david bennett: but for many people in the world, their demands in terms of health are mu more modest. the people who face hunger, who face the threat of disease constantly, for them, survival is really health. to see the very quiet, subtle way in which communities can pull together is really quite remarkable. if we have that very broad definition, then everything becomes health. if we look only at certain narrowly defined diseases, we miss somehow the whole interaction that makes up the human being. the whole interaction that makes up the health of a human being begins with a genetic map. dean hamer: dna is like a blueprint that determines not t only our physical bodie, but also, at least in part, our brains. and our brains, of course, are what control our behavior, and so, although it surprises some people, our ge